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Heat Pump seasonal modelling

Aneysha Minocha

Hello, 

We are currently modelling Air-Source Heat Pumps for a non-domestic retrofit. We have CoPs available from manufacturer datasheets, which relate to various base operating temperatures (A-7, A2, A10 etc., output temperatures 35 degrees). We would like to apply these at a granular level to model seasonal carbon reduction. 

What would be the best approach for this?

a. Is there a way we can use the manufacturer data on CoPs to convert to Seasonal Performance Factor annually?

OR

b. Use the various CoPs at different base temperatures and use them for the building at seasonal / monthly levels? Would we also require information on base ambient temperatures for specific locations?

Or

c. Another methodology that would be better suited?

Would greatly appreciate any guidance on this.

Thank you.

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    Thank you @Regor - appreciate your inputs from a controls perspective. You are right - the supplier datasheets tend to provide optimum COPs - not necessarily reflective of the actual performance and how that would vary with seasons. Finally, time of use (ToU) is an excellent concept - only challenges are : a) if the consumer is signed up to a ToU electricity deal (not many at the moment) and b) the grid carbon intensity does not usually align with ToU pricing - which would potentially create unintended consequences.

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  • 0

    Thank you @Regor - appreciate your inputs from a controls perspective. You are right - the supplier datasheets tend to provide optimum COPs - not necessarily reflective of the actual performance and how that would vary with seasons. Finally, time of use (ToU) is an excellent concept - only challenges are : a) if the consumer is signed up to a ToU electricity deal (not many at the moment) and b) the grid carbon intensity does not usually align with ToU pricing - which would potentially create unintended consequences.

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